Podcast
Questions and Answers
What is the purpose of the mixer in a superheterodyne receiver?
What is the purpose of the mixer in a superheterodyne receiver?
- To demodulate the received signal
- To filter out unwanted signals
- To convert the received signal to a fixed intermediate frequency (correct)
- To amplify the received signal
In a superheterodyne receiver, the local oscillator frequency is typically set to:
In a superheterodyne receiver, the local oscillator frequency is typically set to:
- Equal to the carrier frequency
- Randomly chosen
- Higher than the carrier frequency (correct)
- Lower than the carrier frequency
What is the purpose of the IF amplifier in a superheterodyne receiver?
What is the purpose of the IF amplifier in a superheterodyne receiver?
- To amplify the received signal before mixing
- To demodulate the received signal
- To filter out unwanted signals
- To amplify the intermediate frequency signal (correct)
Which stage in a superheterodyne receiver is responsible for selecting the desired signal frequency?
Which stage in a superheterodyne receiver is responsible for selecting the desired signal frequency?
In a superheterodyne receiver, the intermediate frequency is typically:
In a superheterodyne receiver, the intermediate frequency is typically:
What is the purpose of the detector in a superheterodyne receiver?
What is the purpose of the detector in a superheterodyne receiver?
Which stage in a superheterodyne receiver improves sensitivity due to extra gain?
Which stage in a superheterodyne receiver improves sensitivity due to extra gain?
In a superheterodyne receiver, the output of the mixer contains:
In a superheterodyne receiver, the output of the mixer contains:
Which of the following statements about superheterodyne receivers is true?
Which of the following statements about superheterodyne receivers is true?
What is the advantage of using an intermediate frequency in a superheterodyne receiver?
What is the advantage of using an intermediate frequency in a superheterodyne receiver?
